WebKit Bugzilla
New
Browse
Search+
Log In
×
Sign in with GitHub
or
Remember my login
Create Account
·
Forgot Password
Forgotten password account recovery
RESOLVED FIXED
249038
[WebAssembly SIMD] Emulate vector floating-point absolute value on Intel
https://bugs.webkit.org/show_bug.cgi?id=249038
Summary
[WebAssembly SIMD] Emulate vector floating-point absolute value on Intel
David Degazio
Reported
2022-12-09 11:55:12 PST
Intel doesn't have an instruction for SIMD floating-point absolute value, so the WASM f32x4.abs and f64x2.abs opcodes are currently unsupported. We can emulate this feature by generating a vector bitmask and using it to clear the sign bits for all elements in a vector.
Attachments
Add attachment
proposed patch, testcase, etc.
David Degazio
Comment 1
2022-12-09 11:56:52 PST
rdar://103189245
David Degazio
Comment 2
2022-12-09 12:40:46 PST
Pull request:
https://github.com/WebKit/WebKit/pull/7402
EWS
Comment 3
2022-12-13 11:48:24 PST
Committed
257806@main
(e2d9691a6968): <
https://commits.webkit.org/257806@main
> Reviewed commits have been landed. Closing PR #7402 and removing active labels.
Note
You need to
log in
before you can comment on or make changes to this bug.
Top of Page
Format For Printing
XML
Clone This Bug